Open AccessRelationship between temperature, temperature-humidity index and amount of food intake of Sheep
Author(s) -
Bui Van Loi,
Nguyen Xuan Ba,
Lê Đức Ngoan,
Nguyen Quang Linh
Publication year - 2022
Publication title -
journal of experimental biology and agricultural sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.108
H-Index - 2
ISSN - 2320-8694
DOI - 10.18006/2022.10(1).135.143
Subject(s) - heat index , zoology , humidity , food intake , dry matter , lowest temperature recorded on earth , dry season , relative humidity , biology , ecology , geography , endocrinology , heat stress , meteorology , physics , thermodynamics
This study aimed to identify the relationship between temperature, temperature-humidity index (THI), and the amount of dry matter food intake (DMI) by sheep. Twelve Phan Rang (Ninh Thuan province) sheep belonging to three age groups of 6, 9, and 12 months (4 heads of each age group) raised in Thua Thien Hue province were fed with natural grass for two seasons: hot season (April-August) and cold season (November-February). Daily temperature, humidity, and food intake were recorded. The results of the study revealed that temperature and THI were closely correlated (P<0.05) with the amount of food intake by sheep. When the temperature was in the range of 29.5°C to 32.5°C and increased by 1ο C, the DMI of sheep decreased by 14.7 g/BW/day. When the value of THI was more than 28.5 and rose by 1°C, the DMI of sheep decreased by 16.2 g/BW/day.